Vauxhall Vectra car cuts out

This car has done 25k miles I have just purcahsed this car however after 2 weeks the car has started to cut out compltely with no apparent pattern as to when if does it. It has happened 6 times now, when pulling away and a couple of times when turning hard to both the left and right. It has also done it while travellimng. When you restart the car it is fine. Any ideas my last Vectra had a problem with the CIM but it was a failure of electrics eg wipers light as opposed to the whole car cutting out